Recent questions tagged 2012

Widal Test is carried out to test :

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Which one of the following is an example of carrying out biological control of pests/diseases using microbes ?

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Identify the possible link "A" in the following food chain $Plant \to in sec t \to frog \to "A" \to Eagle$

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Common cold differs from pneumonia in, that :

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Giiven below is an imaginary pyramid of numbers. What could be one of the possibilities about certain organisms at some of the different levels ?

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In an area where DDT had been used extensively, the population of birds declined significantly because

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What is the figure given below showing in particular ?

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The extinct human who lived 1,00,000 to 40,000 years ago, in Europe, Asia and parts of Africa, with short stature, heavy eye brows, retreating fore heads, large jaws with heavy teeth, stocky bodies, a lumbering gait and stooped posture was :

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Which one of the following statements is false in respect of viability of mammalian sperm ?

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Signals for parturition originate from

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The test-tube baby programme employs which one of the following techniques ?

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In a normal pregnant woman, the amount of total gonadotropin activity was assessed. The results expected was :

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A person entering an empty room suddenly finds a snake right in front on opening the door. Which one of the following is likely to happen in his neuro-hormonal control system ?

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Which part of the human ear plays no role in hearing as such but is otherwise very much required ?

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Which one is the most abundant protein in the animal world ?

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Compared to those of humans, the erythrocytes in frog are

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Pheretima and its close relatives derive nourishment from

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What is correct to say about the hormone action in humans ?

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Which one of the following is the correct statement for respiration in humans ?

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Anxiety and eating spicy food together in a otherwise normal human, may lead to

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Select the correct statement from the ones given below with respect to Periplaneta americana

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The lydig cell as found in the human body are the secretory source of

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Which one of the following pairs of hormones are the examples of those that can easily pass through the cell membrane of the target cell and bind to a receptor inside is (mostly in the nucleus)

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The human hind brain comprises three parts, one of which is

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The maximum amount of electrolytes and water (70 - 80 percent) from the glomerular filtrate is reabsorbed in which part of the nephron

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A certain road accident patient with unknown blood group needs immediate blood transfusion. His one doctor friend at once offers his blood. What was the blood group of the donor

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Select the correct statement regarding the specific disorder of muscular or skeletal system

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A normal - visioned man whose father was colour bilind, marries a woman whose father was also colour - blind. They have their first child as a daughter. What are the chances that this child would be colour blind

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Which one of the following options gives one correct example each of convergent evolution and divergent evolution

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If one strand of DNA has the nitrogenous base sequence as ATCTG, what would be the complementary RNA stand sequence

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What was the most significant trend in the evolution of modern man (**** sapiens) from his ancestors

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$F_2$ generation in a Mendelian cross showed that both genotypic and phenotypic ratios are same as 1 : 2: 1. It represents a case of

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Ribosomal RNA is actively synthesized in

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Given below is the diagrammatic representation of one of the categories of small molecular weight organic compounds in the living tissues. Identify the category shown and the one blank component 'X' in it

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What is true about ribosomes

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Which one out of A - D given below correctly represents the structural formula of the basic amino acid

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Given below is the representation of a certain event at a particular stage of a type of cell division which is this stage

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Select the the correct statement from the following regarding cell membrane

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In which one of the following the genus name its two characters and its phylum are not correctly matched, whereas the remaining three are correct

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Which one single organism or the pair of organisms is correctly assigned to its or their named taxonomic group

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The cyanobacteria are also referred to as

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For transformation, micro - particles coated with DNA to be bombarded with gene are made up of

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Which part would be most suitable for raising virus free plants for microporpagation

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Which one of the following is a case of wrong matching

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Consumption of which one of the following foods can prevent the kind of blindness associated with vitamin 'A' deficiency

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Which one is a true statement regarding DNA polymerase used in PCR

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A nitrogen - fixing microbe associated with Azolla in rice fields is

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A patient brought to a hospital with myocardial infarction is normally immediately given

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A single strand of nucleic acid tagged with a radioactive molecule is called

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Which one of the following microbes forms symbiotic association with plants and helps then in their nutrition

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